naa a22 4500 51081574X CHVBK 20180411083506.0 cr unu---uuuuu 180411e20131101xx s 000 0 eng 10.1134/S0031918X13110112 doi (NATIONALLICENCE)springer-10.1134/S0031918X13110112 Effect of chemical composition of precursors and annealing temperature on structure and critical current of multifilament Bi,Pb-2223/Ag composites [Elektronische Daten] [D. Rakov, Yu. Belotelova, T. Krinitsina, E. Kuznetsova, Yu. Blinova, S. Sudareva, E. Romanov] X-ray diffraction and transmission and scanning electron microscopy have been used to study ceramics of Bi,Pb-2223/Ag composites (with small deviations from stoichiometry) after standard treatment and annealings with some variations in temperatures compared to standard treatment (optimum annealings). The data obtained have been analyzed together with the results of measurements of the critical currents of the composites. A nonuniform distribution of the structure and components over the transverse section of ceramic filaments has been revealed after standard treatment. The content of carbon in the center of the filaments was higher by a factor of two or even greater than that in the subsurface layers adjacent to the Ag sheath. It is shown that each composition of the composite has its own optimum annealing temperature, which ensures a decrease in the carbon content in the center of the ceramic filaments and the creation of a structure that is more favorable for obtaining high critical currents. Pleiades Publishing, Ltd., 2013 HTSC composites nationallicence structure inhomogeneities nationallicence carbon nationallicence critical currents nationallicence Rakov D. Bochvar All-Russia Research Institute of Inorganic Materials, a/ya 369, 123060, Moscow, Russia aut Belotelova Yu Bochvar All-Russia Research Institute of Inorganic Materials, a/ya 369, 123060, Moscow, Russia aut Krinitsina T. Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, 620990, Ekaterinburg, Russia aut Kuznetsova E. Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, 620990, Ekaterinburg, Russia aut Blinova Yu Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, 620990, Ekaterinburg, Russia aut Sudareva S. Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, 620990, Ekaterinburg, Russia aut Romanov E. Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, 620990, Ekaterinburg, Russia aut The Physics of Metals and Metallography Springer US; http://www.springer-ny.com 114/11(2013-11-01), 918-927 0031-918X 114:11<918 2013 114 11508 https://doi.org/10.1134/S0031918X13110112 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0031918X13110112 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rakov D. Bochvar All-Russia Research Institute of Inorganic Materials, a/ya 369, 123060, Moscow, Russia aut NATIONALLICENCE 700 1- Belotelova Yu Bochvar All-Russia Research Institute of Inorganic Materials, a/ya 369, 123060, Moscow, Russia aut NATIONALLICENCE 700 1- Krinitsina T. Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, 620990, Ekaterinburg, Russia aut NATIONALLICENCE 700 1- Kuznetsova E. Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, 620990, Ekaterinburg, Russia aut NATIONALLICENCE 700 1- Blinova Yu Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, 620990, Ekaterinburg, Russia aut NATIONALLICENCE 700 1- Sudareva S. Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, 620990, Ekaterinburg, Russia aut NATIONALLICENCE 700 1- Romanov E. Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, 620990, Ekaterinburg, Russia aut NATIONALLICENCE 773 0- The Physics of Metals and Metallography Springer US; http://www.springer-ny.com 114/11(2013-11-01), 918-927 0031-918X 114:11<918 2013 114 11508 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer